Hi I have dead NiCd battery that measured 0 volts.No matter how long you put this thing in the carger, it just woudn't hold any charge?Is there any known way to resurrect this battery? Non-commercially?
I have done this many times. Take a voltmeter and put it across the cell (don't do cells in series, do them one at a time). Get a current limited power supply (bench power supply), set it to about 3 to 5V, and limit the current to something between 3 and 20 amps (yes, I have used as high as 20A and not hurt the battery). BRIEFLY (one second or less) touch the power supply wires across the battery. Watch the voltage. It should come up. If it reaches 1.2 V, stop, and charge it immediately. Be careful not to overheat the battery - it may explode.
If he's genuine, then definite. I keep in mind reading a verse the place he introduced a youthful woman back from the lifeless. and individuals can resurrect the lifeless, as a thank you to communicate, because of the fact somebody's technically lifeless while their heart has stopped for a undeniable volume of time.
You say it won't hold a charge - do you mean that it holds charge for a very short time? As in after you charge it, the radio or whatever dies in a minute or so? If so, I've had some success charging the battery, then putting it in a flashlight and letting it die, over and over. Each time, the recharge lasts longer. After about 10 times, its up about 80% of what a new one will do. And you're not risking an explosion G
I have found a way to restore NiCd batteries that seems to work even when they no longer will take any charge (battery charger light off). It is a variation of the battery in a freezer. I live in the north where winter temperatures fluctuate from -20F to 60F or higher in a day inside a car that is parked outside. So I took some NiCd batteries and put them in a plastic bag with the intention of dropping at the recycle place. I forgot about them and they sat in the car for several months. At night the temp would drop to anywhere between -20F to 0F. During the day the temp would rise inside the car due to sunshine to being 10 to 20 degrees above outside air temp. When I noticed the batteries in the spring, I decided to see if they would take a charge. The took a charge again where before the battery charger light would not even light up. It took a long to charge them up but they worked like new. You can do the same in a freezer by putting them in the freezer overnight and then taking them out in the morning. Repeat. I do not know what the minimum number of cold and warming cycles are necessary but in my case it was about 90 cycles.
